I have been given the Quran and the like of it along with it
The Prophet's authentic Sunnah is a source of legislation like the Quran; because the Prophet , salllaAllahualihiwasallam, does not speak out of his inclination.
We should not listen to the malicious allegations of those who call to deny the Sunnah.
Allah says (interpretation of the meaning):
"Whoever obeys the Messenger has obeyed Allah."